MCQ

CH2 - SEPARATING SUBSTANCES

A student takes 2 g samples of calcium carbonate and adds them to 20 cm^3 samples of dilute hydrochloric acid at different temperatures. She measures ...

2009 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

Which method would be most suitable for the separation of a mixture of sand and water to obtain the sand?

2012 Summer

3

MCQ

CH2 - SEPARATING SUBSTANCES

The diagram shows the paper chromatograms of four substances, W, X, Y and Z.Which two substances are pure?

2009 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

Which two methods can be used to separate a salt from its solution in water? 1 crystallisation 2 decanting 3 distillation 4 filtration

2014 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

Methanol, CH$_3$OH, and ethanol, C$_2$H$_5$OH, are miscible liquids. Which diagram shows apparatus that is used to obtain methanol from a mixture of ...

2013 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

An aqueous solution is coloured.Which method of separation would show that the solution contains ions of different colours?

2011 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

The table gives the solubility of four substances in ethanol and in water.A mixture containing all four substances is added to ethanol, stirred and fi...

2011 Summer

1

MCQ

CH2 - SEPARATING SUBSTANCES

A fruit drink coloured orange contains a dissolved mixture of red and yellow colouring agents. One of these colouring agents is suspected of being ill...

2010 Summer

3

MCQ

CH2 - SEPARATING SUBSTANCES

Ethanol is made by fermentation.How is ethanol obtained from the fermentation mixture?

2014 Winter

2

MCQ

CH2 - SEPARATING SUBSTANCES

Part of the instructions in an experiment reads as follows. Quickly add 50 cm$^3$ of acid. What is the best piece of apparatus to use?

2012 Winter

4

Theory

Transition Elements

The diagram shows part of the Periodic Table.Answer the following questions using only the symbols of the elements in the diagram. Each symbol may be ...

2021 Spring

2

Theory

CH3 - ATOMS AND ELEMENTS

The table shows the mass of some of the ions in a 1000 cm$^3$ sample of sea water.[Table_1](a) Answer these questions using only the information in th...

2021 Spring

3

Theory

Transition Elements

The table shows some properties of four halogens.(a) (i) Complete the table by predicting:• the boiling point of chlorine• the density of fl...

2021 Spring

2

Theory

CH10 - THE SPEED OF A REACTION

A student investigates the reaction of magnesium powder with dilute hydrochloric acid. The magnesium is in excess.Mg + 2HCl → MgCl2 + H2The rate of ...

2021 Spring

2

Theory

CH16 - SOME NON-METALS AND THEIR COMPOUNDS

This question is about sulfur and compounds of sulfur.(a) Sulfur is a non-metal. Describe three physical properties which are typical of non-metals.1 ...

2021 Spring

2

Theory

Plastics

The structure of compound A is shown. (a) (i) On the structure of compound A, draw a circle around the carboxylic acid functional group. [1] (ii) ...

2021 Spring

1

Theory

CH1 - STATES OF MATTER

Sodium is manufactured by electrolysis.(a) Explain why sodium is manufactured by electrolysis and \textbf{not} by reduction with carbon..................

2021 Spring

1

Theory

Chemical Properties of Acids and Bases

Aqueous ammonia is an alkali.(a) Complete the dot-and-cross diagram to show the electron arrangement in a molecule of ammonia.(b) Complete the word eq...

2021 Spring

2

MCQ

CH1 - STATES OF MATTER

Which row describes the arrangement and movement of particles in a liquid?[Table_1]

2021 Summer

2

MCQ

CH2 - SEPARATING SUBSTANCES

A mixture is separated using the apparatus shown. What is the mixture?

2021 Summer

2